What is water intoxication?

Water intoxication (also known as hyper-hydration or water poisoning) is a potentially fatal disturbance in brain functions that results when the normal balance of electrolytes in the body is pushed outside of safe limits by over-consumption of water.

Yes. Water intoxication (hyponatremia) is fatal because it disrupts the ratio of water to electrolytes in your body. Many cellular processes depend on an ionic concentration gradient, and having too much water in your body dilutes this gradient so that (1) your cells can no longer function properly and (2) water enters the cell too rapidly, which can cause it to swell or burst.

Very possible. Comes from drinking too much liquid in a short period of time. Your kidneys cannot flush out the water fast enough your tissues flood and your electrolytes get whacked (which can lead to heart arythmia and heart attack) and you can die. Looks like some people have provided some links above.

A friend of mine just had a close call with her dog, they were swimming and apparently the dog either accidentally swallowed or actually drank so much water it was overcome with water intoxication. Thankfully they became aware of it in time and the dog survived with numerous iv’s and other treatment.

I remember that incident with the Wii, I think it actually took place in Australia???

Basically it is when you over hydrate yourself and dilute your salt levels severely which are also necessary for you to live. So, then the brain swells thus killing you. You quite literally drop dead.

@rooeytoo I think it was in California. The contest was called “Hold your wee for a Wii.” Idiot radio station.